The effects of multiple grazing sessions (no grazing, early season grazing 1-6 times every 12 days, or early season grazing 2-3 times every 24 days or late-season once every 12 days for three occasions) and fecal input by captive lesser snow geese (Chen caerulescens caerulescens) goslings on net annual primary production (NAPP) and nitrogen content of Puccinellia phryganodes were investigated on the Coastal marshes of La Perouse Bay, Manitoba, Canada (58Ã‹Å¡ 04Ã¢â‚¬â„¢ N, 94Ã‹Å¡ 03Ã¢â‚¬â„¢ W). An experimental garden was constructed and 4 grazing and fertilization treatments (clipping, clipping + fertilization, fertilization, and no fertilization or clipping) were applied. Fecal counts, fecal dry weight, and carbon and nitrogen content were estimated on each plot. Standing crop was measured (July 23 and October 15) on all plots during 2nd year.
Effects of the timing of multiple grazings by geese on net above-ground primary production of swards of Puccinellia phryganodes
Chen caerulescens caerulescens
lesser snow goose
net above-ground primary production (NAPP)
shoot nitrogen content